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author | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-07-08 17:40:06 +0300 |
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committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-07-08 17:59:40 +0300 |
commit | 60c2820d0f6d3497975b6488e2599f8f611d8b95 (patch) | |
tree | b3b03707c6438ea9b99cc57e847ebf517f968ab1 /Documentation/media/uapi/v4l/pixfmt-y12i.rst | |
parent | a97369b5e21ea9b8b5fef7c0f4f48bbe60c07ca3 (diff) | |
download | linux-60c2820d0f6d3497975b6488e2599f8f611d8b95.tar.xz |
doc_rst: rename the media Sphinx suff to Documentation/media
The name of the subsystem is "media", and not "linux_tv". Also,
as we plan to add other stuff there in the future, let's
rename also the media uAPI book to media_uapi, to make it
clearer.
No functional changes.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'Documentation/media/uapi/v4l/pixfmt-y12i.rst')
-rw-r--r-- | Documentation/media/uapi/v4l/pixfmt-y12i.rst | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/Documentation/media/uapi/v4l/pixfmt-y12i.rst b/Documentation/media/uapi/v4l/pixfmt-y12i.rst new file mode 100644 index 000000000000..8967e8c33b47 --- /dev/null +++ b/Documentation/media/uapi/v4l/pixfmt-y12i.rst @@ -0,0 +1,44 @@ +.. -*- coding: utf-8; mode: rst -*- + +.. _V4L2-PIX-FMT-Y12I: + +************************** +V4L2_PIX_FMT_Y12I ('Y12I') +************************** + +*man V4L2_PIX_FMT_Y12I(2)* + +Interleaved grey-scale image, e.g. from a stereo-pair + + +Description +=========== + +This is a grey-scale image with a depth of 12 bits per pixel, but with +pixels from 2 sources interleaved and bit-packed. Each pixel is stored +in a 24-bit word in the little-endian order. On a little-endian machine +these pixels can be deinterlaced using + +.. code-block:: c + + __u8 *buf; + left0 = 0xfff & *(__u16 *)buf; + right0 = *(__u16 *)(buf + 1) >> 4; + +**Bit-packed representation.** +pixels cross the byte boundary and have a ratio of 3 bytes for each +interleaved pixel. + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + :widths: 2 1 1 + + + - .. row 1 + + - Y'\ :sub:`0left[7:0]` + + - Y'\ :sub:`0right[3:0]`\ Y'\ :sub:`0left[11:8]` + + - Y'\ :sub:`0right[11:4]` |